gatt_client_read_characteristic_descriptor_using_descriptor_handle() function

Reads the characteristic descriptor using its handle. If the characteristic descriptor is found, a GATT_EVENT_CHARACTERISTIC_DESCRIPTOR_QUERY_RESULT event will be emitted. The GATT_EVENT_QUERY_COMPLETE event marks the end of read.

Syntax

Show:

Summary

Declaration

Definition

from gatt_client.h:779

uint8_t gatt_client_read_characteristic_descriptor_using_descriptor_handle(btstack_packet_handler_t callback, hci_con_handle_t con_handle, uint16_t descriptor_handle);

Implemented in gatt_client.c:2638

Arguments

Argument

callback

con_handle

descriptor_handle

Return value

status ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER if no HCI connection for con_handle is found BTSTACK_MEMORY_ALLOC_FAILED if no GATT client for con_handle could be allocated GATT_CLIENT_IN_WRONG_STATE if GATT client is not ready ERROR_CODE_SUCCESS if query is successfully registered

Examples

References

from examples

gatt_client_read_characteristic_descriptor_using_descriptor_handle() function

Syntax

Arguments

Return value

Examples

References

Call Tree

Data Use

Class Tree

Override Tree

Implementations

Instances

Lifecycle